ASME BPVCode III 2015 d5 high temperature reactors

Báo cáo khoa học: Hyperthermophilic enzymes ) stability, activity and implementation strategies for high temperature applications pot

... 6.5 65 (a 2) 180 (a 4) 220 (a 4) 63 57 90 80 135 232 (a 4) 35 61 155 32 59 330 (a 8) 40 38 93 114 52 45 124 (a 6) 30 205 (a 4) 207 (a 4) 190 (a 4) 180 (a 4) 160 (a 6) 312 (a1 0) 133 (a 4) 36 98 (a 2) 52 83 77 ... thermodynamics (i.e for endothermic reactions) would result in increased yields when the reaction is performed at high temperatures; (e) the reactions kinetics are faster at high temperatures; (f) enzymatic ... biotechnological and biocatalytic applications, where the opportunities are relevant to (a) how we might employ hyperthermostable enzymes for applications where extreme temperatures are required and (b) how...

carbon nanotube array thermal interfaces for high temperature silicon carbide devices

... Growth Temperature on Carbon Nanotube Array Thermal Interfaces, ASME Journal of Heat Transfer, in press 17 B.A Cola, X Xu and T.S Fisher, Increased Real Contact in Thermal Interfaces: A Carbon Nanotube/ Foil ... June 2011 HIGH- TEMPERATURE SILICON CARBIDE DEVICES 237 15 P.B Amama, B.A Cola, T.D Sands, X Xu and T.S Fisher, Dendrimer-Assisted Controlled Growth of Carbon Nanotubes for Enhanced Thermal Interface ... of H2 Carbon nanotube growth conditions were established by igniting a 200-W plasma and introducing 10 SCCM of CH4 into the chamber for a duration of 10 HIGH- TEMPERATURE SILICON CARBIDE DEVICES...

Báo cáo hóa học: " Self-propagating high-temperature synthesis of nano-TiCx particles with different shapes by using carbon nano-tube as C source" doc

... sizes of the TiCx particles decrease and the cubic character of the TiC x particles becomes more and more distinct (Figure 2h) In the sample with 70 wt.% Fe, there are many TiCx particles with ... Self-propagating high-temperature synthesis of nano-TiCx particles with different shapes by using carbon nano-tube as C source Nanoscale Research Letters 2011 6:515 Submit your manuscript to a journal ... the synthesized TiCx particles decrease with the increase in the Me content When the Me content increases to 80 wt.% for Cu, Al, and Fe, the sizes of the TiC x particles decrease to about 62+60...

Báo cáo hóa học: " Study of the formation processes of gold droplet arrays on Si substrates by high temperature anneals" docx

... depending on the state of the oxide on the Si wafer The AFM images of gold films deposited on the Si surfaces with different states of oxide coverage are shown in Figure The size distributions of the ... studies The authors believe that it can be related to the transition processes during sample heating Conclusions In this study, the detailed investigations of the peculiarities of the formation of the ... that the gold evaporation from the Si substrate surface was the accompanying process to the formation of gold island arrays during the high temperature anneals Figure shows the contents of oxygen...

Research for Agricultural Sciences:" Effect of high temperature fluidized drying and tempering on head rice yield and mechanical strength of Vietnamese rice varieties " doc

... Effect of high temperature fluidized drying and tempering on head rice yield and mechanical strength of Vietnamese rice varieties Introduction Being as a major exporter of rice all over ... knowledge on the effect of high temperature drying and tempering on head rice yield, fissured kernels, mechanical strength and quality changes of Vietnamese rice varieties The specific objectives of ... reduction of moisture contents during fluidized bed drying and tempering at high temperatures for two Vietnamese rice varieties (A10 and OM2717) Head rice yield Drying time effect: Increased drying...

Báo cáo hóa học: " High-Temperature Stable Operation of Nanoribbon Field-Effect Transistors" pot

... result in the variation of the operation point, it is desirable to keep the current level constant over a range of temperatures In order to realize such operation of the nanoribbon FETs, we propose ... the bottom of the channel surface Table compares the off-state drain leakage portion of the two methods at different temperatures As shown in Table 1, in the case of method (1), the off-state ... substrate bias (VSUB) applied for the purpose of keeping the operation of the device constant for temperatures in the range from 25 to 150°C Constant on- and offstates were successfully accomplished...

Báo cáo hóa học: " Nanostructured Hypoeutectic Fe-B Alloy Prepared by a Self-propagating High Temperature Synthesis Combining a Rapid Cooling Technique" ppt

... prepare the bulk nanostructured hypoeutectic Fe94.3B5.7 alloy The Fe94.3B5.7 alloy is characterized by a lamellar eutectic with t-Fe2B and a- Fe phases The eutectic laminar space is about 50 nm and ... alloy was about mm thick and 30 mm in diameter The black Al2O3 product was on top of the target product, which separated naturally from the desired Fe94.3B5.7 alloy and could be removed by hand ... ignites the reaction of the reactants Then combustion wave of the reaction propagates from top to bottom of the reactant compact, and the reactants transform to the Fe-B alloy and Al2O3 where the...

Báo cáo hóa học: " Self-assembled GaInNAs/GaAsN quantum dot lasers: solid source molecular beam epitaxy growth and high-temperature operation" pptx

... values of ml and 2.5 ml have been reported for gas -source molecular beam epitaxy (GSMBE)-grown Ga0.3In0.7N0.04As0.96 and InN0.02As0.98 QDs, respectively [23] For metalorganic vapor phase epitaxy (MOVPE)-grown ... the bandgap and lattice matching to GaAs [3–6] Figure shows the relationship between the lattice constant and bandgap energy in III–V alloy semiconductors, taking into account the signiﬁcant bandgap ... compared to the dot layer and barrier layer Its presence will modify the strain ﬁeld or quantum conﬁnement conditions of the dot layer A properly designed intermediate layer can improve the dot size...

Báo cáo hóa học: " Self-organization of quantum-dot pairs by high-temperature droplet epitaxy" pptx

... image of QD pairs formed after 45 s annealing under arsenic ﬂux 123 Nanoscale Res Lett (2006) 1:57–61 example, the density of droplets increases by a factor of six for the same amount of Ga, ... of ~2.3 per square micrometer In forming the droplets we have observed that the substrate temperature is a signiﬁcant parameter for the tuning of droplet density For Fig (a) AFM image of Ga droplets ... novel semiconductor nanostructures by taking advantage of the shape instability of Ga droplets during the transformation into GaAs dots The crystallization of Ga droplets proceeds at a much faster...

MATERIALS FOR HIGH TEMPERATURE SEMICONDUCTOR DEVICES ppt

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Báo cáo vật lý: "PHONON SPECTRA OF HIGH TEMPERATURE SUPERCONDUCTOR Bi2Sr2Ca2Cu3O10: THEORY AND EXPERIMENT" potx

... Cardona and others [1–5] studied the Raman and Infrared spectra of the superconductivity cuprate perovskites and reported the origin of phonon softening and the systematic vibrations of phonon ... Phonon Spectra of High Temperature Superconductor 54 An attempt has been made in this paper to study phonon frequencies in Bi2Sr2Ca2Cu3O10 high temperature superconductor in the frame work of modified ... appropriate amounts of SrCO3, CaCO3 and CuO It was kept at 940oC in air for 16 hours and after which it was cooled, pulverized, Phonon Spectra of High Temperature Superconductor 56 pelletized and heated...

High Temperature Strain of Metals and Alloys Part 1 ppt

... Composition of Superalloys 12 9 Rafting 13 0 Effect of Composition and Temperature on γ/γ Misfit Other Creep Equations 13 7 Summary 14 1 11 1 13 6 VII 8 .1 8.2 8.3 Deformation of Some Refractory Metals The Creep ... Mechanism of Strain at High Temperatures Physical Model and Theory 43 Velocity of Dislocations 45 Dislocation Density 49 Rate of the Steady-State Creep 51 43 High Temperature Strain of Metals and Alloys, ... Crystals of Superalloys 7 .1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Effect of Orientation on Properties 11 1 Deformation at Lower Temperatures 11 6 Deformation at Higher Temperatures 12 4 On the Composition of Superalloys...

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